TM 3-4230-218-12&P
4-14. CARBURETOR - Continued.
Dial
4000
d.
Adjustment.
indications must
RPM.
(1)
(2)
(3)
(4)
(5)
be multiplied by 1000 (x1000). The number 4 represents
Adjust dial (2) on RPM indicator (1) so dial is between 4200
and 4400.
Wire (4) should now be extended approximately
three inches.
Start engine.
When engine reaches maximum speed, hold RPM indicator (1)
firmly against engine starter (3) as shown.
While holding RPM indicator in place, rotate dial (2) to the left,
then right.
Watch wire (4) as dial is moved. When wire vi-
brates at maximum swing, stop rotating dial. Read dial indica-
tion.
If RPM indication is less than 4200 or greater than 4400 go to
step (6).
If RPM indication is between 4200 and 4400, no car-
buretor adjustment is required.
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